Department for Communities and Local Government, (2019) Floors in loft conversions. In: Approved Document B: Fire Safety - Volume 1: Dwellings. 2019 ed. Section 5: Internal fire spread – dwellinghouses, 1 (5.4). RIBA Publishing Publication, London, p. 50. ISBN 9781859469156
Full text not available from this repository.Abstract
Where adding an additional storey to a two storey single family dwellinghouse, new floors should have a minimum REI 30 fire resistance. Any floor forming part of the enclosure to the circulation space between the loft conversion and the final exit should achieve a minimum rating of REI 30.
The existing first-storey construction should have a minimum rating of R 30. The fire performance may be reduced for integrity and insulation, when both of the following conditions are met.
a. Only one storey is added, containing a maximum of two habitable rooms.
b. The new storey has a maximum total area of 50m2.
| Item Type: | Book Section |
|---|---|
| Additional Information: | mml-maui-text-analytics-keywords |
| Uncontrolled Keywords: | single storey, dwellinghouse, storey, fire compartment |
| Subjects: | Section 05: Internal fire spread – dwellinghouses B3: Internal fire spread (structure) Building standards |
| Date Deposited: | 15 Feb 2020 06:05 |
| Last Modified: | 29 Sep 2022 21:01 |
| URI: | https://buildvoc.co.uk/id/eprint/455 |
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